| effects of lythrum salicaria extracts on hyperglycemic rats and mice. | ether extracts of lythrum salicaria stems and flowers exhibited significant hypoglycemic activity in rats with glucose- and epinephrine-induced hyperglycemia when the animals were given oral doses equivalent to 10 g/kg of starting material. these extracts were also found to be active in alloxan- and streptozotocin-diabetic rats and alloxan-diabetic mice. while both stem and flower extracts reduced the elevated gamma-glutamyl transpeptidase activity induced by streptozotocin in rats, only the ste ... | 1986 | 3713231 |
| effects of lythrum salicaria in normoglycemic rats. | several extracts from stem and flower of lythrum salicaria were evaluated for their hypoglycemic activity in rats. results indicate that ether extracts from stem or flowers at a dose equivalent to 10 g/kg of crude plant material caused a significant reduction in blood glucose 4 h after oral administration and that this effect was associated with an increase of circulating insulin. the effects of extracts on lipid and carbohydrate metabolism were also studied. | 1985 | 3910965 |
| a preliminary study of hypoglycemic activity of lythrum salicaria. | a study of the hypoglycemic activity of several extracts of lythrum salicaria was made in normoglycemic and hyperglycemic rabbits. circulating insulin variations were studied as well. the results of this study prove a hypoglycemic activity of the plant. | 1980 | 7007584 |
| mass rearing methods for galerucella calmariensis and g. pusilla (coleoptera: chrysomelidae), biological control agents of lythrum salicaria (lythraceae). | purple loosestrife, lythrum salicaria l., an invasive eurasian perennial, is degrading wetlands across temperate north america. because conventional control methods have proven ineffective, current emphasis is on the introduction and release of host-specific biological control agents. to increase the availability of control agents for distribution and thus the potential for faster control, mass rearing techniques for 2 leaf beetles, galerucella calmariensis l. and g. pusilla duftschmidt, were de ... | 1999 | 10333750 |
| antimicrobial effects of finnish plant extracts containing flavonoids and other phenolic compounds. | plant phenolics, especially dietary flavonoids, are currently of growing interest owing to their supposed functional properties in promoting human health. antimicrobial screening of 13 phenolic substances and 29 extracts prepared from finnish plant materials against selected microbes was conducted in this study. the tests were carried out using diffusion methods with four to nine microbial species (aspergillus niger, bacillus subtilis, candida albicans, escherichia coli, micrococcus luteus, pseu ... | 2000 | 10857921 |
| mass rearing the weevil hylobius transversovittatus (coleoptera: curculionidae), biological control agent of lythrum salicaria, on semiartificial diet. | lythrum salicaria l., purple loosestrife, an invasive eurasian perennial, is degrading wetlands across temperate north america. chemical, physical, and mechanical methods failed to provide long-term control. therefore, four host-specific insect species (two leaf feeders, a root feeder, and a flower feeder) were introduced as biological control agents. to increase the availability of adults of the root feeding weevil hylobius transversovittatus goeze for field releases, we developed a semiartific ... | 2000 | 11142294 |
| susceptibility of the leaf-eating beetle, galerucella calmariensis, a biological control agent for purple loosestrife (lythrum salcaria), to three mosquito control larvicides. | we evaluated the susceptibility of galerucella calmariensis, a species used to control purple loosestrife (lythrum salicaria), to three mosquito control larvicides. larvae and adults were fed loosestrife cuttings dipped in abate (< or = 375 g x l(-1)), altosid (< or = 250 g x l(-1)), and bacillus thuringiensis var israeliensis (bti) (< or = 110 g x l(-1)). eggs on cuttings were dipped in the same concentrations. pupae were immersed in abate and altosid solutions (< or = 474.4 microg x l(-1) and ... | 2004 | 15230319 |
| interactions of root and leaf herbivores on purple loosestrife (lythrum salicaria). | interspecific interactions of herbivores sharing a host plant may be important in structuring herbivore communities. we investigated host plant-mediated interactions of root (hylobius transversovittatus) and leaf herbivores (galerucella calmariensis), released to control purple loosestrife (lythrum salicaria) in north america, in field and potted plant experiments. in the potted plant experiments, leaf herbivory by g. calmariensis reduced h. transversovittatus larval survival (but not larval dev ... | 2004 | 15619100 |
| experimental and natural weed host-virus relations. | weeds, as alternative hosts of plant viruses and nutrient plants of virus vectors play important role in virus ecology and epidemiology. the aim of our study was to discover new weed-virus relations. therefore some weed species were mechanically inoculated with 28 viruses (strains or isolates) maintained in our glasshouse. different weed species with and without visible symptoms were collected from agro-, water ecosystems and wastelands of hungary between 1997 and 2003. virus infections were eva ... | 2004 | 15759395 |
| bioactivity guided isolation of antimicrobial compounds from lythrum salicaria. | lythrum salicaria extracts showed activity against the phytopathogenic fungus cladosporium cucumerinum and activity against the bacteria staphylococcus aureus, proteus mirabilis and microccocus luteus. bioautography on thin-layer chromatograms was used to isolate the two antifungal triterpenoids oleanolic and ursolic acid. the hexahydroxydiphenoyl ester vescalagin was isolated as active principle of the antibacterial activity. furthermore, the flavon-c-glucosides vitexin, isovitexin, orientin an ... | 2005 | 15975734 |
| understanding local mediterranean diets: a multidisciplinary pharmacological and ethnobotanical approach. | epidemiological data indicate a beneficial effect of mediterranean diets on human health, especially on the prevalence of cardiovascular disease. these observations are supported by recent intervention studies. however, very little is known about the current role of local mediterranean food products, which are consumed on a less regular basis and their contribution to a healthy diet. the european consortium "local food-nutraceuticals" collected 127 locally consumed wild or semi-wild plants in th ... | 2005 | 16051496 |
| dimethylfuran-lactone pheromone from males of galerucella calmariensis and galerucella pusilla. | male galerucella calmariensis and galerucella pusilla (coleoptera: chrysomelidae) emit an aggregation pheromone while feeding on host foliage. isolation of the compound from collected volatiles was guided by comparisons of gas chromatograms of extracts from males and females and by gas chromatography-electroantennographic detection. the compound was identified by a combination of spectrometric methods and microchemical tests as the novel dimethylfuran lactone, 12,13-dimethyl-5,14-dioxabicyclo[9. ... | 2006 | 16586036 |
| antioxidant, anti-inflammatory, anti-nociceptive activities and composition of lythrum salicaria l. extracts. | lythrum salicaria (purple loosestrife) known as "tibbi hevhulma" in turkish is used for its several beneficial health effects against as diarrhea, chronic intestinal catarrh, hemorrhoid and eczema in the form of a decoction or a fluid extract and to treat varicose veins, bleeding of the gums, hemorrhoid and eczema, externally. dried herbal parts of lythrum salicaria l. (lythraceae) were sequentially extracted with different solvents such as petroleum ether, ethyl acetate, methanol and 50% aqueou ... | 2007 | 17125946 |
| negative per capita effects of two invasive plants, lythrum salicaria and phalaris arundinacea, on the moth diversity of wetland communities. | invasive plants have been shown to negatively affect the diversity of plant communities. however, little is known about the effect of invasive plants on the diversity at other trophic levels. in this study, we examine the per capita effects of two invasive plants, purple loosestrife (lythrum salicaria) and reed canary grass (phalaris arundinacea), on moth diversity in wetland communities at 20 sites in the pacific northwest, usa. prior studies document that increasing abundance of these two plan ... | 2009 | 18947450 |
| density-dependent processes in leaf beetles feeding on purple loosestrife: aggregative behaviour affecting individual growth rates. | aggregative responses are commonly observed in insects, including chrysomelids, affecting both individual and population growth rates. in two closely related chrysomelid beetles (galerucella calmariensis and g. pusilla) feeding on purple loosestrife (lythrum salicaria), recent studies suggest that male-produced pheromones may cause both inter- and intraspecific attraction. this paper further examines the causes and consequences of feeding aggregations in these species. olfactometer studies confi ... | 2010 | 20178674 |
| trophic interactions between two herbivorous insects, galerucella calmariensis and myzus lythri, feeding on purple loosestrife, lythrum salicaria, and two insect predators, harmonia axyridis and chrysoperla carnea. | the effects of two herbivorous insects, galerucella calmariensis duftschmid and myzus lythri l. (coleoptera: chrysomelidae), feeding on purple loosestrife, lythrum salicaria l. (myrtiflorae: lythraceae), were measured in the presence of two insect predators, harmonia axyridis pallas (coleoptera: coccinellidae) and chrysoperla carnea (stephens) (neuroptera: chrysopidae). a greenhouse cage experiment examined the direct effects of these predators on these herbivores, and indirect effects of predat ... | 2007 | 20302526 |
| an acidic glycoconjugate from lythrum salicaria l. with controversial effects on haemostasis. | lythrum salicaria l. belongs to the small lythraceae family of 22 genera, which range in habit from herbs to shrubs and trees found with worldwide distribution (heywood, 1993). the generic name of lythrum derived from greek "luthron"--blood, possibly referring to the color of the flowers or to the one of its herbal use as an astringent to stop bleeding (thompson et al., 1987; mountain, 1994; pawlaczyk and pacula, 2002). the flowering parts and the flowering branch tips are used in traditional me ... | 2010 | 20554008 |
| favorable fragmentation: river reservoirs can impede downstream expansion of riparian weeds. | river valleys represent biologically rich corridors characterized by natural disturbances that create moist and barren sites suitable for colonization by native riparian plants, and also by weeds. dams and reservoirs interrupt the longitudinal corridors and we hypothesized that this could restrict downstream weed expansion. to consider this "reservoir impediment" hypothesis we assessed the occurrences and abundances of weeds along a 315-km river valley corridor that commenced with an unimpounded ... | 2010 | 20945766 |
| matrix habitat and plant damage influence colonization of purple loosestrife patches by specialist leaf-beetles. | the characteristics of the matrix, that is, the unsuitable habitat connecting host-plant patches may facilitate or limit herbivore movement thus affecting their population dynamics. we evaluated the effect of matrix habitat, distance between patches, and plant damage on movement of two leaf-beetles (galerucella calmariensis linnaeus and g. pusilla duft) introduced to north america as biocontrol agents of the invasive purple loosestrife (lythrum salicaria linnaeus). mark-recapture/resight experi ... | 2011 | 22251719 |
| burn wound healing activity of lythrum salicaria l. and hypericum scabrum l. | burns are complicated traumatic injuries caused by several physical or chemical factors. plants with a wide range of secondary metabolites, with valuable properties like antioxidant and anti-inflammatory activities, can be a promising source of wound healing agents. | 2016 | 27701123 |
| a comparative study of anti-candida activity and phenolic contents of the calluses from lythrum salicaria l. in different treatments. | in the study, anti-candida activity and phenol contents of lythrum salicaria l. calli and wild species have been evaluated. the seeds of l. salicaria (lythraceae), collected from lahidjan city in the north of iran, were cultured in murashige and skoog medium (msm) with a supplement, gibberellin, to germinate. callus inductions were performed from segments of seedling on msm containing different concentrations of plant growth regulators, 2,4-dichlorophenoxyacetic acid (2,4-d) and 6-benzylaminopur ... | 2013 | 23494219 |
| biological activity and microscopic characterization of lythrum salicaria l. | there are several plants have been used worldwide in the folk medicine with high incidence for treatment of human disorders, of which lythrum salicaria belongs to the lythraceae family has traditionally reputation for some medicinal usage and recently many biological and pharmacological activity of the plant have been studied. | 2013 | 23885663 |
| construction cost and invasive potential: comparing lythrum salicaria (lythraceae) with co-occurring native species along pond banks. | lythrum salicaria (purple loosestrife) is a nonindigenous invasive species characterized by prolific growth and abundance in marshy and riparian habitats across north america. given its invasive success, we hypothesized this species may require less energy and/or use energy more efficiently for biomass construction than co-occurring noninvasive plant species. we measured leaf construction cost (cc), leaf mass per unit area (lma), and leaf organic nitrogen and carbon content of l. salicaria and t ... | 2001 | 21669658 |
| impacts of vegetation and temperature on the treatment of domestic sewage in constructed wetlands incorporated with ferric-carbon micro-electrolysis material. | ferric-carbon micro-electrolysis (fe/c-m/e) material had been widely used for the pretreatment of wastewater. therefore, we hypothesized that fe/c-m/e material could enhance the treatment of domestic sewage when integrated into cws. in this study, constructed wetlands (cws) integrated with fe/c-m/e material were developed. during the experiment of vegetation influence, percentages of nh4(+)-n, no3(-)-n, tn, and cod removed in polyculture (w1) were up to 91.8%, 97.0%, 92.3%, and 85.4%, respective ... | 2017 | 28318297 |
| [study on the nitrogen and phosphorus uptake ability of four plants cultivated on floating-bed]. | plant floating-bed tested engineering was constructed for eutrophication control in dian-shan lake, the characteristics and nutrient uptake abilities of canna indica, iris pseudacorus, thalia dealbata and lythrum salicaria were compared. it shows that using upper and lower nylon nets to fix the plants on the floating-bed is beneficial for them to grow and reproduce rapidly. survival rates of canna indica, lris pseudacorus, thalia dealbata and lythrum salicaria are 83.33%, 83.33%, 76.67% and 53.3 ... | 2011 | 21717738 |
| phytochemical evaluation of lythrum salicaria extracts and their effects on guinea-pig ileum. | n-hexane, chloroform, ethyl acetate and 50% ethanol in water extracts prepared from the air-dried flowering parts of lythrum salicaria l. were tested for in vitro pharmacological properties on guinea-pig ileum, which is suitable for detecting a whole range of neuronal and smooth muscle effects. uhplc-ms was used to evaluate polyphenol components of the extracts. in the ileum, the most prominent response (46.4% related to 0.5 microm histamine) of the extracts causing smooth muscle contractions we ... | 2013 | 24273858 |
| invasion of a dominant floral resource: effects on the floral community and pollination of native plants. | through competition for pollinators, invasive plants may suppress native flora. community-level studies provide an integrative assessment of invasion impacts and insights into factors that influence the vulnerability of different native species. we investigated effects of the nonnative herb lythrum salicaria on pollination of native species in 14 fens of the eastern united states. we compared visitors per flower for 122 native plant species in invaded and uninvaded fens and incorporated a landsc ... | 2017 | 28052387 |
| role of human gut microbiota metabolism in the anti-inflammatory effect of traditionally used ellagitannin-rich plant materials. | ellagitannin-rich plant materials are widely used in traditional medicine as effective, internally used anti-inflammatory agents. due to the not well-established bioavailability of ellagitannins, the mechanisms of observed therapeutic effects following oral administration still remain unclear. the aim of the study was to evaluate if selected ellagitannin-rich plant materials could be the source of bioavailable gut microbiota metabolites, i.e. urolithins, together with determination of the anti-i ... | 2014 | 24969824 |
| warming increases plant biomass and reduces diversity across continents, latitudes, and species migration scenarios in experimental wetland communities. | atmospheric warming may influence plant productivity and diversity and induce poleward migration of species, altering communities across latitudes. complicating the picture is that communities from different continents deviate in evolutionary histories, which may modify responses to warming and migration. we used experimental wetland plant communities grown from seed banks as model systems to determine whether effects of warming on biomass production and species richness are consistent across co ... | 2014 | 23996933 |